On Mon, Sep 19, 2011 at 10:28:03AM +0300, Pekka Enberg wrote: > Hi Kent, > > On Sat, Sep 10, 2011 at 9:45 AM, Kent Overstreet > <kent.overstreet@xxxxxxxxx> wrote: > > bcache, n.: a cache for arbitrary block devices that uses an SSD > > > > It's probably past time I started poking people to see about getting > > this stuff in. It's synced up with mainline, the documentation is for > > once relatively up to date, and it looks just about production ready. > > > > Suggestions are more than welcome on how to make it easier to review - > > it's entirely too much code, I know (near 10k lines now). I'll be > > emailing the patches that touch other parts of the kernel separately. > > > > Short overview: > > Bcache does both writethrough and writeback caching. It presents itself > > as a new block device, a bit like say md. You can cache an arbitrary > > number of block devices with a single cache device, and attach and > > detach things at runtime - it's quite flexible. > > The changelog is pretty useless for people like myself who have never > heard of bcache before because it lacks any explanation why bcache is > useful (i.e. a real-world use case). > > Pekka Well, I think you'll want the documentation for that - Documentation/bcache.txt is somewhat up to date and should answer that decently. Short version: bcache is for making IO faster. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
